You can change all server.cfg settings you like prefixed with KCCONF_SERVER_ So specify KCCONF_SERVER_MYSQL_HOST for mysql_host setting in server.cfg. Or specify KCCONF_LDAP_LDAP_SEARCH_BASE to set ldap_search_base in ldap.cfg.

You may override default settings with KCCONF_* options or comment specific options in/out with KCCOMMENT_filenameWithoutExtension_anystring=searchline
e.g. KCCOMMENT_LDAP_1=!include /usr/share/kopano/ldap.openldap.cfg

For coredumps on crashes kopano-server requires the fs.suid_dumpable sysctl to contain the value 2, not 0.

The docker image kopano_ssl will create certificates for all containers. Those certificates are selfsigned and only for internal Kopano component communication.

kopano_webapp port 80 is meant to be published through a https reverse proxy. MAPI connection for Outlook is also handled over port 80.

Maybe you need to execute kopano-cli --list-users once after initial install in the kopano_server container.

See: https://documentation.kopano.io/kopanocore_administrator_manual/configure_kc_components.html#testing-ldap-configuration

Example:

docker-compose exec kserver kopano-cli --list-users (This may last very long without any console output.)

Building supported Kopano

If you have an active Kopano subscription you need specify the following build time arguments:

KOPANO_CORE_REPOSITORY_URL to https://serial:<YOURSERIAL>@download.kopano.io/supported/core:/final/Debian_9.0
RELEASE_KEY_DOWNLOAD to 1
DOWNLOAD_COMMUNITY_PACKAGES to 0

Example:

docker build --build-arg KOPANO_CORE_REPOSITORY_URL=https://serial:ABC123456789@download.kopano.io/supported/core:/final/Debian_9.0 --build-arg RELEASE_KEY_DOWNLOAD=1 --build-arg DOWNLOAD_COMMUNITY_PACKAGES=0 https://github.com/zokradonh/kopano-docker.git#:core